It has been said that our most distant primate ancestors, the mammal that gave rise to early primates but itself wasn't quite a primate, was most like the Asian tree shrew, which is neither a shrew nor does it live in trees. This is, of course, untrue. When the average American sees a shrew native to the new world scurrying past, he or she usually thinks of it as a form of mouse. Which it isn't. (In fact, there are no "mice" native to the new world, but even if we give our hypothetical observer the concept of "rodent" as in "eeek, a rodent" the shrew is not that either.) If you spend any…
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